TSB81BA3DPFPG4 Equivalent & Substitute Parts

Part Overview

The TSB81BA3DPFPG4 is a half-duplex IEEE 1394 transceiver IC manufactured by Texas Instruments, configured with 6 drivers and 6 receivers in an 80-HTQFP (12x12) surface mount package. This component is designed for FireWire interface applications requiring bidirectional signal transmission and reception.

The TSB81BA3DPFPG4 is discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

TSB81BA3DPFPG4

Texas InstrumentsIn Stock: 2123TSB81BA3DPFPG4 Datasheet

Current PartRFQ

TSB81BA3DPFP

Texas InstrumentsIn Stock: 7801TSB81BA3DPFP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSB81BA3DPFPG4 is determined by strict equivalence across the following critical parameters:

• IEEE 1394 protocol compliance
• Half-duplex transceiver configuration with 6 drivers and 6 receivers
• 3V to 3.6V supply voltage range
• 0°C to 70°C operating temperature range
• 80-TQFP Exposed Pad package with 80-HTQFP (12x12) physical dimensions
• Surface mount mounting type
• ROHS3 compliance and MSL 3 rating

The TSB81BA3DPFP meets all electrical and mechanical substitution criteria. The primary difference is packaging format (Tray versus Tube), which does not affect functional or electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The TSB81BA3DPFP is a direct functional equivalent to the TSB81BA3DPFPG4. Both parts share identical electrical specifications, package dimensions, and compliance certifications. The TSB81BA3DPFP carries Last Time Buy status, indicating limited future availability.

Selection between these parts should be based on packaging requirements and supply chain considerations. The Tray packaging of the TSB81BA3DPFP is suitable for automated assembly processes, while the Tube packaging of the main part is typically used for manual or lower-volume applications.

Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring compatibility with standard PCB assembly and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the TSB81BA3DPFP be used as a direct replacement for the TSB81BA3DPFPG4?

A: Yes. Both parts are electrically and mechanically identical. They share the same base product number (TSB81BA3), protocol (IEEE 1394), transceiver configuration (6/6 half-duplex), supply voltage range (3V ~ 3.6V), operating temperature range (0°C ~ 70°C), and package dimensions (80-HTQFP 12x12). The only difference is the packaging format (Tray versus Tube).

Q: What is the difference between Tube and Tray packaging?

A: Tube packaging is typically used for lower-volume or manual assembly applications, while Tray packaging is optimized for automated pick-and-place assembly processes. Both formats contain the same component and provide equivalent protection during storage and transport when handled according to MSL 3 guidelines.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the TSB81BA3DPFPG4 and TSB81BA3DPFP are ROHS3 compliant, REACH unaffected, and carry identical MSL 3 ratings (168 hours). They meet the same regulatory and environmental standards.

Q: What does Last Time Buy status mean for the TSB81BA3DPFP?

A: Last Time Buy indicates that Texas Instruments has announced the end of production for this part. Current inventory is available, but future availability is not guaranteed. Procurement should account for this status when planning long-term supply chains.

Q: Are the pin configurations identical between these parts?

A: Yes. Both parts use the 80-HTQFP (12x12) package with exposed pad, ensuring identical PCB footprints and pin assignments. No layout modifications are required for substitution.